Label gripper for duplex labeling machines



March 4, 1930.

c; H. osLUND 1,749,716

LBELv GRIPPER FOR DUPLEX LABELING' MACHINES Filed Feb. 23, 1929 2 Sheets-Sheet l Awa/, M

Manch 4, 1930. c. H. osLuND 1,749,716

LABEL GRIPPER FOR DUPLEX LABELING MACHINES Filed Feb. 23, 1929 2 Sheets-Sheet 2 l V l0 \q"\\ 27. l

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nuw) Patented Mar. 4, 1930 UNITED .STATES PATENT OFFICE CHARLES H. OSLUND, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE LIQUID CARBONIO CORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE LABEL GRIPPER FOR DUPLEX LABELING MACHINES Application filed February 23, 1929.

In Patent No. 1,253,250 granted to John Emmanuel Johnson, January 15, 1918, he showed a duplex labeling machine with means for operating the grip arms and the present invention is an improvement overV that.

The principal objects of this invention are to provide an improvement in the cams for avoid the crossing of one cam groove over the other and the corresponding diculty of setting the cams so as to avoid interference of the moving parts, and to provide a gear construction for actuating the grip arms from the cams.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. 1 is a plan of a machine constructed in accordance with this invention;

Fig. 2 is a sectional view taken on a radial plane;

Fig. 3 is aside view of the label grip arm with a part of its operating mechanism, and

Fig. 4 is an end view of partof the same mechanism, taken from the inner end.

The invention is shown as applied to a machine comprising a rotary table 10, which is supplied with bottles from a feed turret 11 and discharges them through a discharge turret 12, a conveyor 13 being used for taking the bottles to andv from the machine. This machine is rotated in any desired way through a central shaft 14 and provided with a series of stations around the circumference having means in the form of clamps 15 for holding down the articles B to be labeled.

This invention does not relate to the features just mentioned but entirely to the label grippers or grip arms 16 and 16a and the way of operating them. Mounted in stationary position around the shaft 14 is a bearing 17 and on this are fixed two cams 18 and 19. These are split cams secured together by bolts 20 or the like and liXed independently in position on stationary bearings 17 The cam grooves are horizontal, that is, they consist of grooves 21 and 22 in the horizontal tops ofthe cams 18 and 19. In each of these 'the gripper arm 16 or 16a. 'arm there is a holder 30 or 30a for the neck label and a holder 31 or 31a for the body label A Serial No. 342,017.

'them coming into any conflict with each W other. Consequently the two cams 18 and 19 can beset up and no care has to be taken that they register with each other in any way. operating the two grip arms which will The two sets of rollers 23 and 23a are mounted on arms 24 and 24l fixed to vertical shafts 25 and 25a or to gears 26 and 26a mounted thereon. The undulations of the cam grooves therefore oscillate the gears 26 and 26a. yEach gear meshes with a gear or segment 27 or 27a which is fixed on a radial shaft 28 or 28a which carries on the end of it On each gripper preferably.

In practice the curvature of each cam is such that these gripper arms will move from horizontal to vertical position as indicated in Fig. 3 and will operate in certain order.

That is, every alternate one is connected with i the next one in accordance with the curvature of a single cam. The rest of them are operated by the other cam in a corresponding order but there is not necessarily any relationship between the two series. The two grip arms next to each other can operate simultaneously or either one can operate ahead of the other.

In this way it will be seen that the possibility of any coniiict in operation between c the mechanism controlled by the two different cams isobviated. By having the cams horizontal, instead of vertical, plenty of room is provided for the arms and the like which are operated by them.

Although I have illustrated and described only one form of the invention I am aware of the fact that modifications can be made therein by any person skilled in the art with out departing from the scope of the invention as expressad in the claims.

Therefore, I do not wish to be limited in this respect but what I do claim is 1. In a labeling machine, the combination with a rotary table and a series of means on the table for clamping the articles to be labeled, of two series of labelV grippers arranged on the table in alternate relationship,

a central vertical shaft on which the table is n mounted, a pair of cams located in horizontal position around the shaft, one entirely inside the other, said c ains having horizontal top faces each provided with an open top cam groove and means connected with said cam grooves for operating the label grippers n ln a labeling machine, th'e 'combination with a shaft and a table carried Aon the shaft, two series of label grippers, radial shafts on which said label grippers are mounted, two cams in the saine plane siiiro'nding the "shaft, one inside the othergeach having a cam groove, cani rolls in saidv grooves, aserios of arms on which said rollsNare carried, 4a fgear connected with each of lsaid arms to be oscillated thereby on its own aXis, a vgear meshing with each of said vgearsand each fixed on the end of one of said radial shafts, whereby said shafts will be osc'illated by the cani rollers, the alternate ones being operfated by the same cam, whereby eac-h cam may be set up separately without regard" to the other?. v i

3, In a labeling machine, the combination with a 'verticallshaft land a horizontal table 'carriedontihe shaft,I of a series ofjcl-amps on the table for the articles to belabeled, two series of label grippers carried at the circumference of the table, two horizontal cams surrounding the shaft, one inside the other, each having an open-topped cam groove, cam rolls in said grooves, a series 4of arms on which said rolls are carried, a gear connecte'd with each of said ar'xns to be oscillated thereby on its own axis, a gear segment meshing with each of said ,gears and two seriesof radial shafts to which said 'segments are fixed, whereby said shafts will be oscillated by the cam rollers, said shafts being equally spaced 'apart around the table. f i i In testimony whereof I have hereunto affixed my signature.

CHARLES H. o'sLUND.

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